- Memorize which units are weak against which and be able to react on the fly. The game is built around this, if some transports are giving you hell send some tanks after them. Read the little booklet that comes in the case and keep it nearby.
- Move your infantry around in the transports, I usually spawn a transport and some engineers at the start. Then I quickly move them to the first uplink and go from there. It's pointless to have them run across the battlefield. Plus, the transports are more effective with their machine guns.
- I always upgraded uplinks to air support because it's an easy and quick attack. If some units are attacking and you have nobody nearby to assist...launch the air strikes against those hostiles.
- DO NOT GROUP ALL YOUR UNITS AROUND ONE UPLINK OR IN ONE PLACE. Once you crush your enemy enough he gets a WMD activated and will launch it at a large group of your units. You will be cleaning up the fallout from that. I've screwed myself over far too many times because I kept everyone together lest I get ambushed. Then the WMD is activated and I can't separate everyone fast enough.